Lined dispensing carton



Nov. 6, 1962 w z'GRA GGEN LINED DISPENSING CARTON Filed July 18l 1950 2 Sheets-Sheet 1 Fig.

Fig. 2

Nov. 6, 1962 Filed July 18, 1960 W. Z'GRAGGEN LINED DISPENSING CARTON 2 Sheets-Sheet 2 United States Patent fiice 3062427 3,062,427 ,K v LINED DISPENSING CARTON Walter Zgraggen, Im Grat 13, Zurich-Urdorf,

Switzerland Filed July 18, 1960, Ser. No. 43,502 priority, application Germany July 28, 1959 Claims. (Cl. 229-14) The present invention relates to a so-called seal-tight Wrapping 01' Packing, i.e. a packing which may contain for` instance aroma or oxygen sensitive material and which is adapted after opening and withdrawal of such material again to be closed in a seal-tight manner.

vIt is an object of the present invention to provide a Wrapping or packing of the above mentioned general type. which, after being opened, will limit the circulation of air to a minimum and which may be closed again in a seal-tight manner.

i It is another object of this invention to provide a wrapplng of the type set forth in the preceding paragraph, which is inexpensive and can easily be manufactured.

These and other objects and advantages of the invention Will appear more clearly from the following specication in connection with the accompanying drawings, in which:

FIG. 1 illustrates a development or blank for the outer wrapping according to the invention.

FIG. 2 is an elevation of the head of the inner wrapping, the head not yet being folded over.

FIG. 3 is a perspective view of the packing according to the invention with the lid in somewhat opened position.

FIG. 4 is a perspective View of the front port'on of the inner bag of a packing according to the invention with cut-oli lobe for forming a pouring opening.

FIG. 5 is a front view of FIG. 4.

FIG. 6 corresponds to FIG. 5 but shows the marginal portion of the head folded over into the upper wrapping plane.

FIG. 7 shows the front flap of the bag folded over turned the end face of the wrapping.

FIG. 8 is a perspective view of the collar of the inner bag.

FIG. 9 ilfustrates a development or blank for the inner wrapping according to the invention.

The packing or wrapping according to the present invention comprises an inner bag in combination with an outer cover which is formed by a box of cardboard, sheet metal or synthetic material.

The inner bag consists of a humidity and fluid impermeable foil of synthetic material or of an aluminum foil covered with a foil of humidity resistant and gas impermeable foil of synthetic material so as to be suitable for a seal-tight vacuum soft wrapper. As synthetic material may be employed cellophane, nylon or Dra'on.

The head closure is formed in the manner of a bag closure, and the upper bag marginal portion is folded over into the head plane of the wrapping. The protruding lobes are likewise folded but downwardly and, more specifically, the front lobe is, after the wrapping has been opened, folded' downwardly against the front end side of the bag so that the outer lid, when closing the wrapping, will extend over the lobes. The frcnt end of the wrapping is detachable for forming a pouring opening.

After the bag has been l ed with the respective material, the bag will be air evacuated and filled with an inert gas whereupon the wrapping is fused on all sides.

For the sake of completeness, it may be mentioned that there is known for instance a wrapping having an inner wrapper with a lobe which is folded downwardly by a iiap of the lid of the outer wrapper when the latter is closed again. This closure, however, is not tight since a Claims Patented Nov. 6, 1952 2 counter bearing is missing and because the flap is able to yield under the pressure ofthe lobe.

The essence of the present invention is seen in the fact that within the inner bag there is with regard to the upper edge of the packing,- provided a stiffening strip which forms a collar and also serves as counter bearing for the lobe while forming a sealing edge.

A further feature of the invention consists in that the seal at the upper end of the inner bag tapers toward the pouring opening.- In other words, the' seal has not a constant width, whereby a larger pouring opening will be obtained. Y l

Referring now to the drawings in detail, the lid of the outer wrapping is designatedi with the reference numeral 1 whereas the wrapping itself is designated with the refer# ence numeral 2. kThe upper marginal wrapping portion of the inner bag 3 is designated with the reference' numeral 4. Arranged within the inner bag 3 and connected thereto is a reinforcing collar 5. The upper marginal portions 7 and 8 of the inner bag 3 are folded toward the center of the e'nd face 6 of the inner bag as is particularly clearly shown in FIG. 5. In this way, protruding lobes 9, 11 and 10, 12 are formed7 as illustrated in FIG. 2; the marginal portions 7 and 8 are fusedat 13. It should be noted that the fusing strip 13 becomes narrower toward the end face 6. FIG. 3 illustrates how the marginal flaps or lobes 10, 12 are folded into the plane of the end face 6 and how the lid 1 when being closed will press the lobes 10, 12 against the inner bag. FIG. 3 further illustrates how said lobes will resiliently engage the side 14 of lid 1. In this way, the relative positions of lobe 10, 12 and lid side 14 will be assured. Prior to cutting olf the lobe for forming a pouring opening 15, the lobes 9, 11 and 10, 12 may also be folded into the upper packing plane indicated in dash lines in FIG. 3.

FIGS. 4 and 5 show the inner bag after the upper marginal portions 7, 8 have oeen folded upwardly and after the tip 12 has been cut off for forming the pouring opening 15. FIGS. 6 and 7 clearly ind'cate how the pouring opening 15 can again be closed and will be pressed in the direction of the arrow downwardly against the surface 6. As further closure means will serve the lid portion 14. The lid sides 17 taper toward the tilting axis 16 of the lid (FIG. 3).

After the pouring opening 15 has been obtained and after the desired quantity of material has been withdrawn from the wrapping, it is to be assured that when closing the wrapping, the upper lid and the side 14 will press the protruding lobe 10 downwardly beyond the collar edge 5' so that the wrapping is again tightly closed. By folding lobe 10 over the edge of the reinforcing part 5, it will be assured that the inner bag 3 is firmly closed inasmuch as the lobe 10 is pressed by lid side 14 against the end face 6 while furthermore said lobe 10 will itself press against the downwardly folded lid 1, 14 from the inside so that the said lid will be held in its position due to the thus occurring tension. Without the reinforcing strip 5, the inner bag 3 would be pressed together and a reclosure with the required tightness could not be obtained. The tapering sealing strip 13 brin-gs about a greater pouring opening 15 when cutting off lobe 12.

It will thus be appreciated from the above that the arrangement according to the present invention will a-t low production costs make possible a Wrapping which may repeatedly be opened and tightly closed.

The tilting axis 16 of lid 1 may also be arranged on the wide side of the packing in which instance the strip 13 would have yto be cut off in order to obtain a pouring opening which will be still bigger.

There exists also the possibility to introduce a spoon into the packing whereby the possibility of withdrawing for instance bulky goods will be improved.

It is, of course, to be understood that the present invention is, by no means, limited to the particular construction shown in the drawings but also comprises any modications within the scope of the appended claims.

What I claim is:

1. In a packing: an outer relatively stiff box-shaped cover with a lid adapted selectively to be opened and closed, an inner bag comprising a substantially humidity and gas impermeable flexible foil and having its upper end provided with a portion adapted to be converted into a spout and also adapted to be folded into c1osing position against an outer surface area on one side of said inner bag, said portion when folded against said outer surface area of said inner bag being engageable by said lid so as to be pressed against said outer `surface area, and a stiff reinforcing strip mounted in and extending about the inside of the bag and connected to the inner side of said inner bag, said reinforcing strip being located in the bag behind Said outer surface area so as to stiffen the same.

2. A packing according to claim l, in which the upper edge of said reinforcing strip is substantially flush with the folding line about which said portion of the inner bag is foldable against said outer surface area, and said inner bag projecting above the top of said cover when the lid is opened.

3. A packing according to claim l, in which the reinforcing strip extends in the bag to below the upper edge of said cover thereby to be supported by the cover.

4. In a packing: an outer relatively stiff box-shaped cover -with a lid adapted selectively to be opened and closed, an inner flexible bag sealed at its upper end along a strip-like area tapering toward one end of said strip-like area, said inner bag comprising a substantially humidity and gas impermeable foil and having said upper end provided with a portion adapted to be converted Iinto a spout and to be folded into closing position against an outer surface area on one side of said inner bag, said inner bag extending above the top of the said cover so said portion when folded against said outer surface area of the upper part of said inner bag will be engaged Iby said lid when the lid is closed so as to press said portion against said outer surface area of said bag, and a stiff reinforcing strip mounted inside said bag and connected to the inner side of said inner bag behind said outer surface area so as to stiffen the same said strip extending from the fold line in said bag where said portion is folded over to beneath the top of said cover whereby the strip is supported by the cover and in turn supports the portion of the bag that projects beyond the top of the cover.

References Cited in the le of this patent UNITED STATES PATENTS 710,513 Reynolds Oct. 7, 1902 2,339,156 Davis Jan. l1, 1944 2,421,141 Carr May 27, 1947 2,481,380 Anderson Sept. 6, 1949 

